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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about php display_errors hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges php error handling Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each
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other. Join them; it only takes a minute: Sign up How to get useful error messages in PHP? up vote 368 down vote favorite 166 I find programming in PHP quite frustrating. Quite often I will try and run http://www.w3schools.com/php/func_error_reporting.asp the script and just get a blank screen back. No error message, just empty screen. The cause might have been a simple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely. It is very difficult to figure out what went wrong. I end up commenting out code, entering "echo" statements everywhere, etc. trying to narrow down the problem. But there surely must be a better way, right?. So, is there a way http://stackoverflow.com/questions/845021/how-to-get-useful-error-messages-in-php to get PHP to produce useful error message like Java does? Can anyone recommend good PHP debugging tips, tools and techniques? php debugging error-handling share|improve this question edited May 11 '13 at 23:52 hkBattousai 3,66683982 asked May 10 '09 at 9:48 Candidasa 2,94982330 coding.smashingmagazine.com/2011/11/30/… –Alex Jul 15 '12 at 14:54 1 Also see stackoverflow.com/q/1475297/632951 –Pacerier Oct 14 '14 at 9:37 @JuannStrauss, That's understating it. And when you finally see the errors, it says T_PAAMAYIM_NEKUDOTAYIM. Or maybe "must be an instance of integer, integer given". –Pacerier Apr 3 '15 at 20:02 Tutorial on this: code2real.blogspot.com/2015/06/… –Pupil Sep 9 '15 at 7:21 add a comment| 27 Answers 27 active oldest votes up vote 354 down vote accepted For syntax errors, you need to enable error display in the php.ini. By default these are turned off because you don't want a "customer" seeing the error messages. Check this page in the PHP documentation for information on the 2 directives: error_reporting and display_errors. display_errors is probably the one you want to change. If you can't modify the php.ini, you can also add the following lines to an .htaccess file: php_flag display_errors on php_value error_reporting 2039 You may want to consider using the value of E_ALL (as mentioned by Gumbo) for your version of PHP for error_reporting to get all of the errors. more info 3 other items:
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies http://stackoverflow.com/questions/1053424/how-do-i-get-php-errors-to-display of this site About Us Learn more about Stack Overflow the company Business http://mongoc.org/libmongoc/1.4.0/errors.html Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: php error Sign up How do I get PHP Errors to display? up vote 671 down vote favorite 201 I have checked my PHP ini file and display errors is set and also error reporting is E_ALL. I have restarted my apache web server. I have even put these lines at the top of my script and it doesn't even catch simple parse errors. For php error reporting example, I declare variables with a "$" and I don't close statements";". But all my scripts show a blank page on these errors, but i want to actually see the errors in my browser output. error_reporting(E_ALL); ini_set('display_errors', 1); What is left to do? php error-reporting share|improve this question edited Mar 9 at 7:16 Maninderpreet Singh 1,7111524 asked Jun 27 '09 at 19:09 Abs 13.3k68208356 3 I've yet to nail down exactly why this works sometimes and not others, but for anyone wanting to quickly toggle errors in a php script (or enable them via a $_REQUEST parameter) these two lines will work most of the time. –brandonscript Oct 28 '13 at 20:15 well you can see details of the error by enabling xdebug from php ini file. –jewelhuq Jan 13 at 10:14 add a comment| 13 Answers 13 active oldest votes up vote 1344 down vote accepted This always works for me: ini_set('display_errors', 1); ini_set('display_startup_errors', 1); error_reporting(E_ALL); However, this doesn't make PHP to show parse errors - the only way to show those errors is to modify your php.ini with this lin
subsystem generated the error, and code for the specific error. message is a human-readable error description. See also: Handling Errors in libbson. Domain Code Description MONGOC_ERROR_CLIENT MONGOC_ERROR_CLIENT_TOO_BIG You tried to send a message larger than the server's max message size. MONGOC_ERROR_CLIENT_AUTHENTICATE Wrong credentials, or failure sending or receiving authentication messages. MONGOC_ERROR_CLIENT_NO_ACCEPTABLE_PEER You tried an SSL connection but the driver was not built with SSL. MONGOC_ERROR_CLIENT_IN_EXHAUST You began iterating an exhaust cursor, then tried to begin another operation with the same mongoc_client_t. MONGOC_ERROR_STREAM MONGOC_ERROR_STREAM_NAME_RESOLUTION DNS failure. MONGOC_ERROR_STREAM_SOCKET Timeout communicating with server, or connection closed. MONGOC_ERROR_STREAM_CONNECT Failed to connect to server. MONGOC_ERROR_PROTOCOL MONGOC_ERROR_PROTOCOL_INVALID_REPLY Corrupt response from server. MONGOC_ERROR_PROTOCOL_BAD_WIRE_VERSION The server version is too old or too new to communicate with the driver. MONGOC_ERROR_CURSOR MONGOC_ERROR_CURSOR_INVALID_CURSOR You passed bad arguments to mongoc_collection_find, or you called mongoc_cursor_next on a completed or failed cursor, or the cursor timed out on the server. MONGOC_ERROR_QUERY MONGOC_ERROR_QUERY_FAILURE Error API Version 1: Server error from command or query. The server error message is in message. MONGOC_ERROR_SERVER MONGOC_ERROR_QUERY_FAILURE Error API Version 2: Server error from command or query. The server error message is in message. MONGOC_ERROR_SASL A SASL error code. man sasl_errors for a list of codes. MONGOC_ERROR_BSON MONGOC_ERROR_BSON_INVALID Corrupt server reply, or you called mongoc_collection_create_index with invalid keys, or tried to insert or update with an invalid document. MONGOC_ERROR_NAMESPACE